Neolamprologus pulcher
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Neolamprologus pulcher is a species of cichlid endemic to Lake Tanganyika. The common names for N. pulcher include daffodil cichlid, fairy cichlid, princess of Zambia and lyretail cichlid. This specie
Neolamprologus pulcher
Sperm competition
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Sperm competition is the competitive process between spermatozoa of two or more different males to fertilize the same egg during sexual reproduction. Competition can occur when females have multiple p
Neolamprologus pulcher
…breeders. Studies have suggested that socially subordinate helper males sneak fertilizations from dominant breeding males. If sneaking does happen, then sperm competition will select for increased reproductive investment by subordinate sneaking males, relative to those of dominant males. This reproductive investment…
Stained human sperm
Human spermatozoa
Indianmeal moth